Biofuels - messiah or myth? Bio-fuels, once seen as the alternative for scarce petroleum, have limitations that prevent their extensive use, says S.Ananthanarayanan. The 1970s were years of innocence - we became aware of the fuel crisis, but we did not
suspect global warming. It was only in 2006, that Al Gore, with his documentary, ‘An inconvenient truth’ brought it home to many that the earth may never be the same again.